Convergence in the variation of local and regional galling species richness

Convergence in the variation of local and regional galling species richness

We investigate the local and regional determinants of galling insect richness on the dioecious shrub Baccharis concinna Barroso (Asteraceae) in the southeastern portion of the Espinhaço Mountains in Brazil. The total number of galling species and the richness of galling Cecidomyiidae (Diptera) were influenced by plant gender. Male plants supported a higher richness of galling insects than female plants, supporting the hypothesis of sex-biased herbivory at the community level. The total number of galling species and the richness of galling cecidomyiids showed a peak at intermediate altitudes. The richness of all galling species and galling cecidomyiids were strongly influenced by habitat. Plants in xeric habitats supported more galling species than plants in mesic habitats, corroborating the hypothesis of hygrothermal/nutritional stress. Our results indicate that local factors may be the most important factors structuring the galling insect community on B. concinna.

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Main Authors: Carneiro,Marco A.A., Fernandes,G.W., De Souza,O.F.F.
Format: Digital revista
Language:English
Published: Sociedade Entomológica do Brasil 2005
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000400003
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spelling oai:scielo:S1519-566X20050004000032005-09-26Convergence in the variation of local and regional galling species richnessCarneiro,Marco A.A.Fernandes,G.W.De Souza,O.F.F. Altitudinal gradient Baccharis concinna diversity ecological community herbivore We investigate the local and regional determinants of galling insect richness on the dioecious shrub Baccharis concinna Barroso (Asteraceae) in the southeastern portion of the Espinhaço Mountains in Brazil. The total number of galling species and the richness of galling Cecidomyiidae (Diptera) were influenced by plant gender. Male plants supported a higher richness of galling insects than female plants, supporting the hypothesis of sex-biased herbivory at the community level. The total number of galling species and the richness of galling cecidomyiids showed a peak at intermediate altitudes. The richness of all galling species and galling cecidomyiids were strongly influenced by habitat. Plants in xeric habitats supported more galling species than plants in mesic habitats, corroborating the hypothesis of hygrothermal/nutritional stress. Our results indicate that local factors may be the most important factors structuring the galling insect community on B. concinna.info:eu-repo/semantics/openAccessSociedade Entomológica do BrasilNeotropical Entomology v.34 n.4 20052005-08-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000400003en10.1590/S1519-566X2005000400003
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Carneiro,Marco A.A.
Fernandes,G.W.
De Souza,O.F.F.
spellingShingle Carneiro,Marco A.A.
Fernandes,G.W.
De Souza,O.F.F.
Convergence in the variation of local and regional galling species richness
author_facet Carneiro,Marco A.A.
Fernandes,G.W.
De Souza,O.F.F.
author_sort Carneiro,Marco A.A.
title Convergence in the variation of local and regional galling species richness
title_short Convergence in the variation of local and regional galling species richness
title_full Convergence in the variation of local and regional galling species richness
title_fullStr Convergence in the variation of local and regional galling species richness
title_full_unstemmed Convergence in the variation of local and regional galling species richness
title_sort convergence in the variation of local and regional galling species richness
description We investigate the local and regional determinants of galling insect richness on the dioecious shrub Baccharis concinna Barroso (Asteraceae) in the southeastern portion of the Espinhaço Mountains in Brazil. The total number of galling species and the richness of galling Cecidomyiidae (Diptera) were influenced by plant gender. Male plants supported a higher richness of galling insects than female plants, supporting the hypothesis of sex-biased herbivory at the community level. The total number of galling species and the richness of galling cecidomyiids showed a peak at intermediate altitudes. The richness of all galling species and galling cecidomyiids were strongly influenced by habitat. Plants in xeric habitats supported more galling species than plants in mesic habitats, corroborating the hypothesis of hygrothermal/nutritional stress. Our results indicate that local factors may be the most important factors structuring the galling insect community on B. concinna.
publisher Sociedade Entomológica do Brasil
publishDate 2005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000400003
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